A couple of good books, if you can find copies of them are "Man-eaters of Kumaon" and "The Man-eating Leopard of Rudraprayag", both by a British civil servant named James Corbett. The first man-eater Corbett killed had claimed over 400 victims in Northern India and Nepal (which earned Corbett a footnote in the Guinness Book of Records).

Corbett believed that a "sixth sense" was simply a case of being so attuned to your surroundings that you subconsciously notice tiny clues without being consciously aware of them. Many others have since stated this as though it were an established fact but I believe Corbett was actually the first to say it.

In "The Man-eating Leopard of Rudraprayag", he described walking alone along a path, returning from a deserted village which had been devastated by the leopard. He had every reason to believe that the leopard was many miles away, so was taking no particular precautions. As he came over a crest in the path, he stopped dead and every hair on the back of his neck stood up, and he *knew* that the man-eater was up ahead lying in wait for him. He unslung his rifle, and walked sideways the entire length of the path, facing downwind (knowing a leopard would never attack from upwind). He never saw so much as a rustle in the bushes, but as soon as he was around the next bend, he immediately doubled back and retraced his steps. There in the soft earth, right where he expected them, were the marks of the man-eater he had been stalking.

Being constantly aware of your surroundings, and knowing the habits and attack characteristics of any wild animal that might pose a threat, are the two most important lessons I would take from that story.